From: Salvatore B. <ope...@gm...> - 2007-06-17 17:04:03
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Hi all I'm experiencing lots of problems in finding a video codec that kdenlive can import for sure. Usually i encode every video i want to import to kdenlive with transocode using ffmpeg's mp4 codec. it seems to work ok but not for every video. It's pretty strange because if i encode with the same codec 2 different videos kdenlive should be able to import both without problems, isn't it? What i'm suggesting here is a mask, a "convert to..." feature available from menu or from the "The file %1 is not a valid video file for kdenlive..." dialog (maybe adding a button to it) which should help users to encode their videos in a format readable for sure by kdenlive mockup attacked -- Salvatore Brigaglia http://ilgattotrino.studiobrigaglia.com Find me on Gtalk! |
From: jb <jb...@ad...> - 2007-06-17 17:30:17
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On Sunday 17 June 2007 19.03:44 Salvatore Brigaglia wrote: > Hi all > > I'm experiencing lots of problems in finding a video codec that kdenlive > can import for sure. Usually i encode every video i want to import to > kdenlive with transocode using ffmpeg's mp4 codec. it seems to work ok but > not for every video. It's pretty strange because if i encode with the same > codec 2 different videos kdenlive should be able to import both without > problems, isn't it? Hmm, maybe if you could send me or give a link to a short video sample that doesn't work in Kdenlive we could find a fix. I would rather try to make those samples work in Kdenlive, because converting video can really be a hell. There are so many video / audio formats and parameters to adjust if you want a good conversion that I don't think I can make a reliable conversion wizard. Not sure anyways what the "best" format would be (maybe dv?). regards jb |
From: Salvatore B. <ope...@gm...> - 2007-06-17 17:49:24
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Il Sunday 17 June 2007 19:30:00 jb ha scritto: > > Hmm, maybe if you could send me or give a link to a short video sample that > doesn't work in Kdenlive we could find a fix. Well... i'm now on a umts connection so i can't upload those files. I'll make a folder on my webserver next weekend. What i can say is that those videos are produced by premiere 7 from a sony cam. They have .avi extensions and kdenlive doesn't like them. I tryed to convert them with "transcode -i file.avi -o output.mp4 -y ffmpeg -F mpeg4" I assumed that without adding anything else to command line transocde will use default settings. kdenlive imported the first video i tried with this conversion but not the second wich was created also with premiere but 5':45'' instead od 1':??'' which was the lenght of the firs file. Sorry if my explanation is a mess. How can i give you more infos bout video formats? all files from all steps above played well vith ffplay and inigo... > I would rather try to make > those samples work in Kdenlive, because converting video can really be a > hell. There are so many video / audio formats and parameters to adjust if > you want a good conversion that I don't think I can make a reliable > conversion wizard. Not sure anyways what the "best" format would be (maybe > dv?). It's sure that make kdenlive understanding all video wolud be better but just untill this is achieved you can try this option to help users adding theyr videos to projects... > regards > jb > Thanks for your time -- Salvatore Brigaglia http://ilgattotrino.studiobrigaglia.com Find me on Gtalk! |
From: Salvatore B. <ope...@gm...> - 2007-06-19 19:15:25
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Il Sunday 17 June 2007 19:30:00 jb ha scritto: > Hmm, maybe if you could send me or give a link to a short video sample that > doesn't work in Kdenlive we could find a fix. I would rather try to make > those samples work in Kdenlive, because converting video can really be a > hell. > regards > jb I don't know wat you did but the premier's capture (avi) file have been loaded into kdenlive project tree. Well done. Thank you. Bye -- Salvatore Brigaglia http://ilgattotrino.studiobrigaglia.com Find me on Gtalk! |
From: Dan D. <da...@de...> - 2007-06-18 19:06:07
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On Sunday 17 June 2007 10:03:44 am Salvatore Brigaglia wrote: > I'm experiencing lots of problems in finding a video codec that kdenlive > can import for sure. Usually i encode every video i want to import to I recommend DV unless it is not 4:3 or 16:9 aspect ratio and unless you prefer lossless or uncompressed (not well-tested). If not using 4:3 or 16:9 or desiring smaller files, MPEG-4 or MPEG-2 with short or no GOP should be good as well. > kdenlive with transocode using ffmpeg's mp4 codec. it seems to work ok but > not for every video. It's pretty strange because if i encode with the same > codec 2 different videos kdenlive should be able to import both without > problems, isn't it? yes, but you can test playability with ffmpeg's ffplay and mlt's inigo. The software is in layers with ffmpeg on bottom, kdenlive, and mlt in the middle. It would be nice to know where it breaks down. kdenlive should be fine with anything that can you play in ffmpeg's ffplay utility with at least some ability to seek. That is a lot of formats and codecs, but not everything, not as much as mplayer or xine with win32 codecs. For example, with latest code, Ogg Theora loads, and seeking is not pretty, but on a final rendering, it processes sequentially and ought to give much better result. In any case, a transcoding frontend is something that can be developed external to kdenlive. I think mlt should focus on making stuff that ffmpeg supports robust, and kdenlive should focus on editing and usage of mlt. avidemux2 serves to some degree as a transcoding frontend, but has rather limited input support. I don't know what else is good, maybe others can recommend. VLC perhaps? |
From: Fredrich L. <fre...@gm...> - 2007-06-18 19:25:58
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Hello! I dont know where to put suggestions to kdenlive, but as a quite heavy kdenlive user, i would greatly appreciate being able to map a jog/shuttle unit to shortcuts...i've gotten around it for now by frame forward/back to buttons and assigning those buttons to the powermate, but since it sends one heck of a lot of keypresses it tends to make kdenlive semi-hang or rewind/forward for a long time, thereby cancelling all precision i should have gotten out of the controller. And, if i may add, i thank you greatly for a stellar app, brilliant! |